Easy to use and install: The product is designed for convenient use and installation. This is a manufacturer's product, not an original equipment part number accessory, but it meets the quality standards of the original equipment manufacturer. High-quality materials: Our tool parts are made of high-quality materials to ensure durability and reliability. No matter what challenges you face, these accessories can withstand demanding conditions. Product Name: Circular Saw Blade Hex Bolt Part Number: 266133-3 Fitment: for 4101RH, 4105KB, BSS610 Application: Circular Saw Blade Clamp Note: Installation guide not included. Professional installation is strongly recommended. Please verify compatibility to ensure the item meets your requirements. Tips: Product may vary slightly due to different production batches, including minor differences in appearance or color, which do not affect functionality. When purchasing, please verify: 1. Part number 2. Shape, size, and appearance 3. Compatibility information Color: Black Material: Steel Package Contents: 4 x Circular Saw Blade Hex Bolts Note: Light reflection and display settings may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1-3 cm.